Poreda called up

The Chicago White Sox promoted rookie Aaron Poreda, according to multiple sources. Poreda, a big lefty, has dominated at Double-A Birmingham. Poreda just missed making the big league roster out of camp with Jose Contreras and Bartolo Colon taking the No. 4 and No. 5 rotation spots.

Fantasy Impact: You'd have to believe the White Sox called up Poreda to join the rotation, but does that mean the end of days for Bartolo Colon? Contreras dazzled Monday night against Detroit while Colon served up four gopher balls to the lowly Indians over the weekend. The Sox top three of Mark Buerhle, John Danks and Gavin Floyd is solid. Poreda would need to unseat Colon for a rotation spot. The Sporting News says the White Sox might go with a six-man rotation, but it's more likely that either Clayton Richard or Poreda ends up in the 'pen. Maybe both do for the time being and the Sox give Colon a couple more chances to start.

Oh, Contreras!

White Sox starter Jose Contreras returned from a near month-long stint in the minors and 1-hit the Tigers over 8 innings. He picks up his first win in almost a year after a ruptured Achilles tendon cost him half of 2008. The Sox win, 6-1.

Fantasy impact: Contreras entered the year as a sleeper candidate thanks to coming back in great shape from his strenuous rehab. He didn't pitch well enough to stay in the big leagues, however, and now needs to string together a few quality starts before he can be trusted on a regular basis.

Contreras can't get through six

Hot and cold Jose Contreras looked like he was putting together one of his good starts in Detroit. Through four innings in Detroit Contreras allowed just three base runners, one of them on his own fielding error. The Tigers got two in the fourth of a Placido Polanco double. Miguel Cabrera homered in the sixth, and after Contreras exited three batters later, Clayton Richard allowed another two runs, one of them charged to Contreras.

Contreras' line: 5.1 IP, 5H 5R, 4ER, 2 BB, 4K

Fantasy Impact: Those aren't terrible numbers, and Richard didn't help matters much. But Contreras doesn't help fantasy owners, either. Not right now, anyway. He's bound to find his good stuff at some point this season, but the veteran owns a 6.97 ERA through two starts. He's best left on the waiver wire at this time.